Rupert Jones^ on Bhmlved Entomostraca. 53 



Table of the Crustacea ; pt'ovisional, and compiled from 

 various sources, to illustrate more especially the Groups of 

 BivALVED Entomostraca. 



* These are known in both the recent and the fossil state. 



t These are known only as fossils. Lowry's ' Chart of Fossil Crustacea,' 

 1S65, shows admirably the range in time for all the groups, from the earliest 

 to the present period. 



CLASS. CRUSTACEA. 

 Subclass 1. Decapoda.* (Cancer, &c.) 



S. Tetradecapoda.^ (Oniscus, &c.) 

 3. Entomostraca."^ 



Order I. Gnathostomata.* 

 Legion 1. Lopliyropoda. 



Tribe \. Cyclopoidea. (Copepoda.) 



Families. Cyclopidse, &c. 

 Tribe 2. Dapbnoidea. (Cladocera.) 



Families. Penilidae, Dapbnidee, Bosmi- 

 nidse, Lynceidae, «&c. 

 Tribe 3. Cyproidea.^ (Ostracoda.) 

 Family I. Cypridse"^ [Brady). 

 Genus. Cypris."^ 



Chlamydotbeca. 



Newnhamia. 



Candona.^ 



Cypridopsis. 



Paracypris. 



Notodromas, 



Pontocypris.'^ 



Bairdia."^ 



Macrocypris.''^ 

 Family II. Cytheridae. 

 Genus. Cythere.^ 



Limnocy there. 



Cytheridea."^ 



Eucy there. 



Ilyobates. 



Loxoconcha.^ 



Xestoleberis. 



Cytherura.^ 



Cytheropteron.'^ 



Bythocythere.^ 



Pseudocythere. 



Cytherideis.^ 



Sclerochilus. 



Paradoxstoma. 



